H3C S7500 Series Ethernet Switches Command Manual

Command Manual – Routing Protocol
H3C S7500 Series Ethernet Switches Chapter 4 Integrated IS-IS Configuration Commands
4-27
Parameters
level-1: Indicates the router works in Level-1, which means it only calculates routes
within the area, and maintains L1 LSDB.
level-1-2: Indicates the router works in Level-1-2, which means it calculates routes and
maintains LSDB for both L1 and L2.
level-2: Indicates the router works in Level-2, which means it calculates LSP switching
and routes and maintains LSDB for L2 only.
Description
Use the is-level command to configure IS-IS router type.
Use the undo is-level command to resume the default configuration.
The configuration is level-1-2 by default.
It is recommended to configure system level when you configure IS-IS.
You can configure all the routers as either Level-1 or Level-2 if there is only one area,
because there is no need for all routers to maintain two identical databases at the same
time. You are advised to configure all routers as Level-2 in IP network so as to facilitate
extending later.
Related commands: isis circuit-level.
Examples
# Configure the current router to work in Level-1.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] isis
[H3C-isis] is-level level-1
4.1.30 log-peer-change
Syntax
log-peer-change
undo log-peer-change
View
IS-IS view
Parameters
None